Effect of Dust Loading Rate on Pressure Drop Characteristics of Non-high Efficiency Filter Media

doi:10.12068/j.issn.1005-3026.2022.07.018

Abstract

Abstract: In order to study the effect of dust loading rate on the pressure drop of non-high efficiency filter media， four different grades of non-high efficiency glass fiber filter media were selected to carry out experimental tests on the change characteristics of filter media pressure drop under different face velocities and dust loading mass concentrations， and the empirical formula of pressure drop change in dust loading process of filter media was summarized. The results show that under the same face velocity and dust loading mass concentration， the lower the grade of filter media， the faster the growth rate of normalized pressure drop， and the greater the amount of dust required to enter the surface filtration period of the filter media. When the face velocity is the same， the higher the dust loading mass concentration of filter media， the slower the pressure drop increases with the dust load per unit area. And the higher the grade of filter media， the smaller the influence of dust loading mass concentration on its pressure drop. The effect of face velocity on the growth of the normalized pressure drop can be ignored under same dust loading rate.

Key words: pressure drop; filter media; dust loading rate; face velocity; dust loading mass concentration

CLC Number:

TU834.833

LIN Xiu-li， ZHAO Yi-xuan， LIU Jing-xian. Effect of Dust Loading Rate on Pressure Drop Characteristics of Non-high Efficiency Filter Media[J]. Journal of Northeastern University(Natural Science), 2022, 43(7): 1056-1064.

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